[Bug testsuite/92398] [10 regression] error in update of gcc.target/powerpc/pr72804.c in r277872

[luoxhu at cn dot ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92398

--- Comment #3 from Xiong Hu XS Luo <luoxhu at cn dot ibm.com> ---
Power8 BE generates:
L.bar:
.LFB1:
        .cfi_startproc
        mtvsrd 0,4
        mtvsrd 1,5
        xxpermdi 12,0,1,0
        xxlnor 0,12,12
        stxvd2x 0,0,3
        blr
        .long 0
        .byte 0,0,0,0,0,0,0,0
        .cfi_endproc
.LFE1:


and source code is below for all:
void
bar (__int128_t *dst, __int128_t src)
{
 *dst =  ~src;
}